Register



2 Sheets-Sheet l Z 4@ -4 M T/ C MJ.. 5 x 3 :fh 2 /4 d 4 W Aww.. e mm m5%, im .IHM TB. N W O rD l un mC m 5 oO l MF VIG T H 5 [MO E N Y I \O YMx 6 H H6 B Ilm A Y l. C m I m oO Y HW ,r m E Z/ uw R Y m l B e a x 6 Mn.m E E O flo M Nov. 16, 1937. R. c. BRADLEY REGI STEP.

Filed Nov. 22, 1935 Nov. 1,719737. R, C, BRADLEY 2,099,463`

REGISTER Filed Nov. 22. 1933 2 Sheets-Sheet 2 n 9a 3g no F40 g +5 $4/ 7I as Tlf* Patented Nov. 16, 1937 UNITEDl STATES REGISTER Richard C.Bradley, Brooklyn, N. Y., assixnor of one-hal! to Fred J. Bradley, St.Albans, N. Y.

Application November 22,'1933, Serial No. 699,120

` 15 Claims.

This invention relates to lregisters, and more particularly to registersfor meters used for measuring the delivery of fluid in bulk.

Meters are commonly employed on tank trucks or the like for measuringthe delivery of a duid or liquid, for example, fuel oil or gasoline, andin many cases these meters are arranged with automatic trip mechanismwhich operates to provide a. signal or to close a valve in the deliverypipe upon the passage of a predetermined quantity of uid. This tripmechanism may be provided by the use of a set of backward running tripWheels adapted to be initially set to the desired quantity to bedelivered or passed through the meter. 'I'he wheels run toward zeroreading, and appropriate trip mechanism is readily provided, responsiveto zero reading of the wheels.

One important disadvantage with such an arrangement is the fact thatwhen the delivery is completed, there is` novisual evidence of thequantity that has been delivered. A householder receiving a delivery offuel oil may be skeptical and distrustful of an arrangement which simplyregisters zero at a time when he is supposed to have received asubstantial quantity of fuel. Even the operator of the delivery truckisglad to have some visual indication of the quantity delivered.

It is accordinglyvone primary object of my invention to provide suchmeters with a check reading register or counter which runs in a forwarddirection and which clearly indicates the quantity of fluid deliveredwhen thet delivery is stopped, whether by tripping of the-.valve by themeter, or manual control, as when the tank is prematurely filled, it nothaving been as empty as thought, or insuiciently filled and thereuponsupplemented by additional delivery.

A further object of my invention concerns the backward running wheels,and resides in the'provision of improved selective adjustment meansmaking possible the independent adjustment of all of the digit wheels todesired readings by the use of a single adjustment means.

Further objects of my invention center 'about the interconnection orgearing of the forward and backward running wheels, as well as theprovision of automatically operable locking mechanism for locking thegearing during adjustment of the wheels to desired initial readings.

To the accomplishment of the foregoing and such other objects as willhereinafter appear, my invention consists in the register elements andtheir relation one to the other, as hereinafter are more particularlydescribed i'n the specification and sought to be defined in the claims.The

(Cl. 23S-132) specification which: l y

Fig. 1 is a perspective view of a meter head embodyingfeatures of myinvention;

Fig. 2 is a section taken in elevation in the 5 plane .of the line 2-2of Fig. 1;

Fig. 3 is a front elevation of the meter head with the cover removed;

Fig. 4 is a rear elevation of'the meter head with the cover partiallycut away; 10

Fig. 5 is an enlarged section taken in elevation in the plane of theline 5-5 in Fig. 2;

Fig. 6 is a partially sectioned detail taken in the plane of the line6-6 of Fig. 5;`

Fig. 7 is a partially sectioned detail taken in l5 the plane of theline'1 -1 of Fig. 5;

Fig. 8 is a partially sectional detail taken in the plane of the line8-8 ci Fig. 5; and

Fig. 9 is a section taken in the plane of the line i-9 of Fig. 5. '20

Referring to the drawings, the meter head is provided with three wheeltrains, the first being a totalizer T located at the rear of the meterhead, the second being a backward running trip wheel train B located atthe front of the meter head, andthe third being a forward running reg-.is accompanied by drawings in ister F also located at the front of themeter head. The totalizing counter T is, of course, not susceptible ofchange, and simply progressively adds the total quantity of fluid passedthrough the meter. The counterF is provided with restoring means R forturning the same back .to zero reading, this being done at the beginningof each delivery, so that the quantity indicated by this counter at theend of the delivery serves as a check upon the total delivery made. Thebackward running wheel train B is provided with a single adjustmentmeans A affording adjustment of the same to any desired initial reading.By thus adjusting the train to the quantity of uid to be delivered, itwill obviously reach zero reading at the end of the delivery. Thissimple uniform alignment of all ofv the wheels is readily takenadvantage of to provide an automatic trip or response. 45

' Considering the mechanism in greater detail, the drive from the meterbody, which may be of the oscillating piston, wobble plate, or otherconventional type, is transmitted to the meter head through spindle I2(Fig. 2) carrying a pinion il meshing with gear I6 on hollow shaft I8.The gearing thus far described is housed in a space 20 provided betweenthe upper and lower plates 22 and 24 of the base of the meter head.Referring now to Figs. 2 and 4, the hollow vertical shaft Il carries abevel gear 20 meshing with bevel gear 20 mounted on a horizontal shaft30, the latter being journaled in a pedestal 32 and one main side wall3d of the frame ofthe meter head. Shaft 30 has mounted thereon justinside of wall 30 a gear 30 which meshes directlyA with gear 30, fixedto the 'lowest order register wheel 40 of the counter F.

Shaft 30 further carries a'gear 42 (Figs. 2 and 4) mounted outside offrame wall 30. This gear meshes with a pinion 40 journaled between framewall 32 and a bracket i0 (Fig. 4) secured to wall 2li. Bracket itfurther carries a stationary circular dial 48 on which a pointer 50 ismovable, the pointer 50 being secured to pinion M. This pointer isvisible through a circular window 02 provided in the side wall of thesheet metal meter head housing or cover 50.- The pointer 50 indie catesthe units of the totalizing counter T.

The totalizing counter T is of the straight reading type and comprises aseries of register wheels 50 only two of which are shown in Fig. 4, andwhich register wheels are mounted on a rod or shaft 50 journaled betweenside plates 20 and 04| of the meter head. The register Wheels areinterconnected in .the conventional manner by Geneva mechanism includinga lock shaft 00 extending between the side plates of the frame andcarrying locking pinions 02 only one of which is visible in Fig. 4. Thelowest order register wheel of the totaliaer T is secured to shaft 50,while the remaining wheels are freely mountedthereon. Shaft 50 carriesat its outer extremity a gear 00 (Figs. 2 and 4) which meshes withpinion 40. The reading of totalizer T may be taken through'an elongatedhorizontal slot or window 60 one end of which is shown in Fig. 4.

The significance of the term straight reading type is that the digitsare read in a continuous .straight line as though written, typewritten,or'

printed. This term is used in contradistinction to that form of registerin which there are as many separate small circular dials as there aredigits. The latter arrangement as commonly constructed employs a plateperforated for a series of shafts, and each perforation is surrounded bya small dial circle numbered from, 1 to 10. There lare interconnected byconventional Geneva gear mechanism including a lock shaft i8 (Fig. 2)extending between side plates 34 and-34' and carrying a series of tenstransfer" and-lock pinions generally designated by the numeral 80 inFig. 2, these pinions being located between the successive registerwheels in the conventional manner.

The Geneva mechanism may be conventional and probably requires nodetailed description, but briefly, each digit wheel of counter F,typically wheels 40 and 02 (Fig. 5)., has associated with it a two toothgear, indicated by numeral 200, and best shown in Fig. 7. .The two teethare marked 202. The disc 200 is secured to a disc 204 (Figs. 5

accents 8, only half of the gear is shown, and on this half only threeof the teeth are drawn in solid lines, the remainder being indicated bythe broken lines 200. Gear 00 has twenty teeth (see Fig. 2) and istherefore moved one tenth of its periphery, or one digit, for eachmovement -of the transfer pinion.

To set the counter to zero, a restoring handle R is provided, thishandle being mounted directly on the end of shaft l0. Shaft 'i0 isprovided with a right-angled or ratcheting spline or keyway 02 (Figs. 6and 7) with which cooperates a series of pawls '00 carried by theindividual register wheels, the .pawls being resiliently moved towardshaft 'l0 by springs 00. The pawls and springs are set in'recesscs 2|0and discs 204. The spline 02 and pawl 04 areso directed as to permitforward run- Upon rotation of ,30

ning of the register wheels. handle R. in proper direction, the pawls 04are successively engaged, and the register wheels are thereby broughtinto alignment and finally r0- tated together to the desired zeroreading, as shown in Fig. l. Thisrestoration to zero reading isaccommodated without disturbing the reading of the totalizer and withoutjamming of the various Geneva or locking pinions of the counter F byreason of a friction clutch mounting between the register wheels per seand the Geneva gears forming a part thereof. Referring to Figs. 5 and 8,-it will be noted that the Geneva gear 8B is rotatably mounted on aflanged hub or tube 00 and is thereby held in face to face relation withthe side -of the register wheell 92. The latter is hollowed out toreceive a spring or friction plate 94 forced to turn with the registerwheel byA reason of diametrlcal lugs 96 and carrying outwardly bearingor outwardly convex spring ngers, the convex Vpositions of which areindicated at the numerals 98, these portions being convex toward theGeneva gear 80, or convex toward the reader viewing Fig. 8 of thedrawings. The Geneva gear 88 has struck'inwardly thereof or toward plate94 a series of detent teeth |00 which cooperate with spring fingers 90,the latter preferably being so broadly convexed as to approximately fillthe space between any two successive de tent teeth |00.

The lowest order register wheel 40 is provided with a generally similarspring or friction clutch between it and the gear 38. Referring to Figs.5 and 6, it will be noted that gear 30 is proiQded. with a series ofholes |02, while register wheel 40 is provided with a spring plate |04anchored in the register wheel at |06 and provided with outwardly struckratchet teeth or projections |08.

It will be evident that with either type of fric.

tion clutch.,- movement of the register wheel is adordedindependently'of the Genevaor spur gearing interconnecting theparts ofthe counter with one another and with the totalizer.

The backward running wheels B correspond to the register wheels F butdiffer in being driven in opposite direction. I 'take advantage of thisfact to simplify the construction of the backward running train and toprovide ample room for the trip mechanism cooperating therewith, bydirectly gearing each wheel of train B to the corresponding registerwheel of counter P'. This completely eliminates the necessity for Genevamechanism on the wheel train B. Referring to Fig. 3, it will be evidentthat the register wheels of counter F are cach provided with a spur'gear||0 meshing with a corresponding spur gear ||2 of each of the digitwheels B. For the sake of simplicity, the digit wheels F and B arepreferably made equal in size; gears and |I2 are made equal in size; andthe wheel trains are arranged in parallel juxtaposition to providedirect engagement of the gears, with consequent reversal in direction ofrotation. K

'I'he digit wheels of the trip train are provided with cams ||4 (seeFigs. 3 and 5) each of which is circular in outline but provided with a.single indentation or recess ||6 k(see Fig. 2). The cams are on theright of the digit wheels as viewed in Fig. 5. except that the cam ofthe lowest order digit wheel is on the left. The meter head is furtherprovided with a trip bar ||8 (see Figs. 2 and 3) having upwardlyprojecting teeth or followers |20 which ride on cams ||4. 'Irip bar ||8is provided with rearwardly extending side arms `|22 pivoted on the sidewalls 34, 34' of the frame by a rod |24 extending therethrough. The tripbar is normally urged upwardly by a leaf spring |26 mounted on frameplate 22 and bearing upwardly directly on the generally U-shaped tripmember.

It will be evident that by so locating the camming recesses 6 that theywill be at the bottom of the train or at the trip bar when the wheelsread zero, the trip bar is permitted to rise under the influence of leafspring |26 when all of the registerwheels are aligned at zero. One sidearm |22 of the trip bar is provided with an upwardly and then sidewardlyextending angle arm |36 (Fig. 4) connected at its end to a vertical triprod |32 which passes downwardly through the tubular shaft |8-o'f thedriving mechanism of the meter. When the trip bar is elevated at zeroreading, the rod or wire |32 is elevated, and this serves, throughsuitable connections (not shown) to provide a signal or, morepreferably, to trip a suitable valve, usually of the butterny type, inthe delivery pipe.

To set the trip train B to desired initial reading is'not so simple asto restore the counter F to zero reading, for each wheel of the triptrain must be independently adjustable to any desired reading. To avoidthe necessity for a pluralityl of adjusting handles, one for each tripwheel, I provide a single adjusting means A which may be used for-adjtniting any one of the trip wheels independently of lche others.Referring to Figs. 5, 6 and 9, the trip wheels are mounted and freelyrotatable on-a ytubular shaft 34 extending between side walls 34 and 34.Tubular shaft |34 is itself rotatable but is held against axial movementby a strap or yoke |36 xedly mounted on side wall 34 and bearing againsta collar |38.

I'he operating knob |44 is mounted at the outer end of an axiallyreciprocable rod |42, this rod being provided at its inner end, withappropriate engagement means for engaging matingmeans byaspring mounting|48. The wheels are splined at their inner or hub surfaces to form aplurality ofsplines |66 best shownin Figs. 6 and 9. Each of thesesplines is dimensioned to receive the key wheel |46, the wheel beingshown in engaged condition in Figs. and 9. It will be evident that bymoving the knob |40 axially, the key wheel |46 may belmoved intoengagement with any one 0f the wheels; and that by then rotating theknob, the wheel may be set to a desired reading.

To facilitate locating and holding the knob in desired axial positionfor any particular wheel, the rod |42 is preferably flattened on oneside and provided with a series of detent notches |62, and the outer endof the tubular shaft |34 is provided with a spring detent |54cooperating v.with the notches |62. The control rod |42 and tubularshaftA |34 are caused torotate together by reason of the attened surfaceon the control rod, the outer end of the tubular shaft being location ofthe control knob is further facilitated and determined by cooperation ofthe key wheel |46 with slots |58 cut through tubular shaft |34.

' 'Ihese slots are, of course, essential to permit the key wheel to comeinto engagement with the splines on the wheels, and, by localizing theslots at each of the wheels instead of making the same continuous, thepossibility of unintentionally moving two wheels at once is prevented.

In order to prevent movement of wheels other than that being adjusted',and in order to guard against the counters of the meter head being movedout of alignment during adjustment of the trip train, I provide lockingmeans for then locking the gearing between the trip train and thecounters against movement. Specifically, I provide a longitudinallyreciprocable lock bar |60 movable in slots cut in frame walls 34 and34'. I'he lock bar |60 is provided with teeth |62 so located as to slideinto engagement with the teeth 0f gears ||2 when the lock bar is movedfrom the unlocked position shown in Fig. 3 to the locked position shownin Fig. 5 of the drawings. The lock bar is moved by an angle lever |64pivoted at |66 and the upper end |68 of which is designed to cooperatewith the end of the axially movable control rod |42. When the trip.counter is to be adjusted to a desired reading, it is flrst necessary tomove the knob |40 outwardly, and this initial movement forces the end|68 of lever |64 to the right and downwardly, thus moving the lock bar|60 into locking position. When the train has been 'adjusted to desiredreading, the knob |40 is ilnally pushed inwardly as far as it will go,at which time the lever |64 and lock bar |60 are moved to the positionsshown in Fig. 3.

It will be understood that gears ||`2 are frictionally related to thewheels in order to permit the latter to be adjusted despite the lockedcondition ofthe gears. For this purpose the gears ||2 are preferablyprovided with inwardly struck detent teeth like the detent teeth |00 onthe Geneva gears of the counter F, and which similarly cooperate withspring plates |12 housed and anchored within the wheels and providedwith outwardly bearing spring nngers |14 cooperating with the detentteeth |10. The trip cams 4 are, of course, rigidlyconnected to thewheels, for the relation between zero reading and the trip point on thecam must remain fixed. In

effect; the cams ||4 form an integral part of the wheels, and the tripbar bears against marginal portions of the wheels which, instead ofbeing truly circular, are cut away at one point to permit 50 ceeds, thecounter F indicates the amount deactuation of the trip bar. The parts ofthe wheel are held in assembled relation by the splined tubular hubsllt, while the wheels `and cams lill are locked together by rivets lill.In the particular meter head here shown, the lowest order wheel of trainB differs in having cam lill located on the same side of the wheel asgear H2, to provide ample clearance f or primary gear 38 of counter F.

To move the trip bar downwardly out of engagement with the notches inthe trip cams when beginning adjustment of the trip wheels, I provideVon lock bar itl) a cam i8!) adapted to cooperate with a cam followerroller i8? mounted on the trip bar M8 (see Figs. 2 and 3). The cam im]and cam follower |32 are so related as to be disengaged, as shown inFig. 3, when the lock bar is in unlocked position. When the lock bar ismoved to its locked position, which takes place at the very beginning ofthe operation of adjusting the trip counter, the cam llill bears againstand forces the cam follower i132 downwardly and with it the trip bar. Inthe resulting position the teeth of the trip bar escape the trip cams.Upon completion of adjustment of the trip train, the lock bar |60 ismoved to unlocked position, thereby releasing the trip bar for attemptedupward movement.

The operation of the meter head may be summarized as follows. Assumingthe meter to be used on a tank truck, upon arrival at the point ofdelivery, the counter F is .restored to zero reading by simply rotatingthe knob R until zero reading is reached. The trip, train B is adjustedto the desired quantity to be delivered by means of the knob A. To dothis theknob is pulled outwardly to the desired digit wheel and thenrotated to set the wheel at the desired reading. At the very beginningof the outward movement of the knob, the lock bar is moved to lockedposition andthe trip bar moved downwardly. After the trip wheels havebeen set to desired reading, the knob A is pushed inwardly, therebyunlocking the gearing and releasing the trip bar for attempted upwardmovement. The delivery is then begun, the valve being interconnectedwith the meter head in such a manner as to be tripped and released toclosed position upon movement of the trip wire extending from the meterhead. As the delivery of fluid prolivered, while the train B runsbaekwardly toward zero. When zero reading is reached on train B, thetrip bar is automatically actuated and the valve tripped to closedcondition. At the same time, the counter F clearly indicates the amountdelivered,l thus avoiding dispute or misunderstanding. vShould it becomenecessary to trip the valve by hand before the delivery is completed, orto supplement the rst delivery by additional liquid, the counter F isavailable to indicate the total correct amount of the actual deliverymade. Throughout the entire series of deliveries the totalizer is, ofcourse, continuously V adding the successive deliveries.

It is believed that the mode of constructing and using, as well as themany advantages ofrmy improved meter head, will be apparent from theforegoing detailed description thereof. It will further be understoodthat while I have shown and described my invention in preferred form,many changes and modifications may belmade in the structure disclosed,without departing from the spirit o f the invention, defined in thefollowing claims.

ment means controlled-thereby for engagement with any one of the wheels,and mating engage- .ment means on each of the wheels, whereby al1 of thewheels may be independently adjusted to a desired reading by the singleaforesaid operating knob, said manually movable means and said meterdriven means being so -related thatv the latter does not interfere withand is not responsive to operation of the manually movable means.

2. A meter head including a plurality of indicatorwheels, drive meansfor turning the same in response to the running'of a meter or likemechamsm, the wheels being so geared as to automatically move in theratio of to 10 to 1 etc., and means affording selective Aadjustment ofsaid wheels to a desired initial reading, said means including anaxially reciprocable rod, an operating knob mounted at the outer end of4said rod, engagement means at the inner end of the rod, and matingengagement means on the wheels, Wheref by all-of the wheels maybeindependently adand means aording selective adjustment of said wheels toa desired initial reading, said means including a rod axiallyreciprocable in the hollow support, an operating knob mounted at theouter end of said rod, a key resiiiently urged radially outwardly at theinner end of the rod, keyways or splines cut in the hubs of the wheels,and detent means cooperating with appropriately spaced notches on therod for establishing the axial positions of the rod resulting in matingof the key with the individual wheels, whereby all of the wheels may beindependently adjusted to a desired reading by the aforesaid singleoperating knob, said selective adjustment means and said meter drivenmeans being so related that the latter does not interfere with and isnot responsive to operationpf the selectiveA adjustment means.

4. A meter head comprising a set of backward running trip wheels of thestraight reading type,

5. A meter head comprising -a set of backward running trip wheels, eachof said wheels including an operating gear and friction clutch meanstherebetween permitting the wheel to be rotated independently of theoperating gear, a lock bar movable into locking position to lock all ofthe operating gears of the wheels against movement, -a trip barresiliently urged into engagement with the marginal part of theperipheries of the wheels, said marginal peripheries being cut away atpoints corresponding to zero reading of the wheels, means for adjustingsaid wheels to deaired initial reading, and means responsive to use ofsaid adjusting means for moving the lock bar into locking position andsaid trip bar out of engagement.

6. A meter head comprising a set of backward running trip wheels of thestraight reading type, each of said wheels including an operating gearand friction clutch means therebetween permitting the wheel to berotated independently of the operating gear, a lock bar movable intolocking position to lock all of the operating gears of the wheelsagainst movement, a trip bar resiliently urged into engagement with themarginal part of the peripherles of the wheels, said marginalperipheries being cut away at points correspond- .ing to zero reading ofthe wheels, and means affording selective adjustment of. said wheels toa desired initial reading, said means including an axially reciprocablerod, an operating knob mounted at the outer end of said rod, engagementmeans at the inner end of the rod, and mating engagement means on eachof the wheels. 4

7. A meter head comprising a set of backward running trip wheels freelyrotatable on a hollow shaft, each of said wheels including an operatinggear and friction clutch means therebetween permitting the wheel to berotated independently of the operating gear, a lock bar movable intolocking position to lock all of the operating gears of. thewheels-,against movement, a trip bar resiliently urged into engagement`with the marginal part of. the peripheries of' the wheels, saidmarginal peripheries being cut away 'at points corresponding to zeroreading of the wheels, and means affording selective adjustment of saidwheels to a desired initial reading, said means including a rod axiallyreciprocable in the hollow shaft, an operating knob mounted at the outerend of said rod, a key resiliently urged radially outwardly at the innerend ofthe rod, keyways or splines cut in the hubs of the wheels, anddetent means cooperating with appropriately spaced notches on the rodfor establishing the axial positions of the rod resulting in mating ofthe key with the individual wheels.

8. In a register, in combination, a set of backward running indicatorwheels, means to set the same to a desired initial reading. la forwardrunning counterincluding a set of counter wheels, means to set the sameto an initial zero reading, means gearing each of said indicatorwheels.

`the means to v set the backward running wheels 'to afdesired readingdoes not change the reading of .the .forward running counter.

' 9. A meter head comprising a set of backward lrunning indicatorvwheelsga set'of forward vrunning counter wheels, said sets of wheelsbeing arranged in parallel juxtaposition, each indicator wheel beinggeared directly to a corresponding o ne of the counter wheels, and aplurality of clutches whereby each indicator wheel may be adjusted.independently of the other kindicator wheels and independently of theforward run-f ning counter. l

10. A meter head comprising a set of backward running digited tripwheels of the straight `reading type, means to set the same to a desiredinitial reading, trip mechanism responsive to zero reading of said tripwheels, a forward running counter of the straight reading type including a set of counter wheels, means to set the same to an initial zeroreading, Asaid sets of trip and counter wheels being arranged inparallel juxtaposition, each trip wheel being geared directly to acorresponding one of the counter wheels, and means whereby the means toset the 'backward running wheels to a desired reading does not changethe reading of the forward running counter; j v

11. A meter head comprising a set of backward running indicator wheels,a set of forward running counter wheels, said sets of wheels beingarranged in parallel juxtaposition, one only of said sets of wheelsbeing provided with conventional transfer mechanism, each indicatorwheel being geared directly to a corresponding one of the counterwheels, and a plurality of clutches whereby each indicator wheel may beadjusted independently of the other indicator wheels and independentlyof the forward running counter.

12. A meter head comprising a set of backward running digited tripwheels of the straight reading type, means to set the same to a desiredinitial reading, trip mechanism responsive to zero reading of said tripwheels, a set of forward running counter wheels forming a counter of thestraight reading'type, means to set the same to an initial zero reading,said sets of `wheels being arranged in parallel juxtaposition,

initial readirm, a set of forward running counter f wheels of thestraight reading type, means to set the same to an initial zero reading,said sets of l wheels being arranged in parallel juxtaposition, one setbeing provided 'with the conventional transfer mechanism, each wheel ofone set being geared directly to the corresponding wheel of the otherset, and means responsive to use of the selective adjustment means forlocking said gearing against movement.

14. A meter head comprising a set of back-f fward running trip wheels,and means affording selective adjustment of said wheels to a desiredinitial reading, said means including an axially reciprocable rod, anoperating knob mounted at the outer end of saicl4 rod, engagementmeansat the inner end of the rod, and mating engagement on the wheels,whereby all of the wheels may be independently adjusted to a desiredreading by the aforesaid single operating knob,

a set of forward running counter wheels, means to set the same vto aninitial zero reading, said sets of wheels being arranged in paralleljuxtaposition, one of said sets being provided with the conventionaltransfer mechanism, each wheel of one set being geared directly to thecorresponding wheel of the other set, the wheels and gears beingfrictionally connected, and means responwheels to a desired initialreading, said means including an axially reciprocabie rod, an operatingknob mounted at the outerA end of said rod, engagement means at theinner end of the rod, and mating engagement means on the wheels, a setof forward running counter wheels of the straight reading type, means toset the same to an initial zero reading, said sets of wheels beingarranged in parallel juxtaposition, one set being provided with theconventional Geneva mechanism including a lock shaft and lock shaftpinions, each wheel of the other set being geared directly to thecorresponding wheel of the rst set, and means responsive to saidselective adjustment means for moving the lock bar into lookingposition.

^ RICHARD C. BRADLEY.

